Enhance civilization flow mechanics and adaptive quality control

- Implemented runtime-only adaptive quality controller to optimize simulation performance based on CPU time.
- Added adaptive quality thresholds and recovery cycles to dynamically adjust simulation fidelity.
- Introduced single-step solving method for civilization transitions to improve performance under high loads.
- Updated benchmark scripts to include speed parameter for testing various simulation speeds.
- Added tests for adaptive quality adjustments and their effects on civilization flow calculations.
- Documented results of optimization attempts and their impact on performance metrics.

tests/benchmark_civilization_flows.gd

@@ -18,7 +18,7 @@ func restore_json_integers(value):
 func run():
     var args = OS.get_cmdline_user_args()
     if args.is_empty():
-        print("Usage: --script tests/benchmark_civilization_flows.gd -- /path/to/save.adventure.json [delta_seconds] [profile] [cycles=100]")
+        print("Usage: --script tests/benchmark_civilization_flows.gd -- /path/to/save.adventure.json [delta_seconds] [profile] [cycles=100] [speed=1..6]")
         quit(1)
         return
     var data = JSON.parse_string(FileAccess.get_file_as_string(args[0]))
@@ -33,7 +33,11 @@ func run():
     if not is_finite(delta) or delta <= 0:
         quit(1)
         return
-    for speed in [6]:
+    var selected_speed: int = 6
+    for arg in args:
+        if arg.begins_with("speed="):
+            selected_speed = clampi(arg.trim_prefix("speed=").to_int(), 1, root.get_node("Global").SPEED_LIMIT)
+    for speed in [selected_speed]:
         var world = load("res://world/owniverse/owniverse.gd").new()
         world.catalog.load_definitions(root.get_node("Global").OwniverseEntities)
         world.state = initial.duplicate(true)